. their relationship has been tense, even frosty, an issue that mitt romney has tried to exploit. >> they have thrown israel under the bus. >> i have executed on my foreign policy, one that people largely agree with. so if governor mitt romney is suggesting we should start another war, he should say so. >> reporter: still unclear, how much of today's tough talk is meant to do something sanctions have not achieved, get iran to negotiate. savannah. >> all right, how close is iran to the point of no return? there is a big difference between american intelligence and israel's view, the u.s. feels there is at least a year, and no need to take action quickly. israel wants it to be quicker and for the u.s. to be involved. >>> meanwhile, on the campaign trail, the candidates were shadowing each other in a crucial swing state, this time, virginia, chief correspondent chuck todd has more. >> reporter: good evening, savannah, the presidential campaign, of course is focused on nine states where the polls are close. and every year, one state stands out from the rest, in 2004, it was florida, ohio, more and more,
